Automatic record changing apparatus



1943. A. L. KNOX ET AL 2,332,650

AUTOMATIC RECORD CHANGING APPARATUS I Filed Dec. 31, 1940 '7Sheets-Sheet l INVENTORS ARTHUR L. KNOX ERI- AH ATTORNEY Oct; 26, 1943,A, L, KNOX ET AL 2,332,650

AUTOMATIC RECORD CHANGING APPARATUS 7 Filed Dec. 51, i940 7 Shets-Sheet2 YATHUR L. KNOX 0) KAH Oct. 26, 1943. A. L. KNOX ErAL 2,332,650 IAUTOMATIC RECORD CHANGING APPARATUS Filed Dec. 31,, 1940 I 7Sheets-Sheet 5 INVENTORS ARTHURL.KNOX

KAHL

Oct. 26, 1943.

A. L. KNOX ET AL AUTOMATIC RECORD CHANGING APPARATUS Filed Dec. 31, 19407 Sheets-Sheet 4 INVENTORS ARTHUR L. KNOX Oct. 26, 1943. A. 1.. max ETAL 2,332,650

AUTOMATIC RECORD CHANGING APPARATUS Filed'Dec. 31, 1940 7 Sheets-Sheet 5INVENTORS ARTHUR L. KNOX KAH Oct 26, 19 43. A. L. KNOX ET AL AUTOMATICRECORD CHANGING APPARATUS Filed Dec. 31,

1940 I "(sheets-sheet 6 INVENTORS ARTHUR L. KNOX KAHL Oct. 26, 1943. A.KNOX ET AL 2,332,650

AUTOMATIC RECORD CHANGING APPARATUS Filed Dec. 51, 1940 7 Sheets-Sheet'7 INVENTORS ARTHUR, L. KNOX ATTORNEY Patented Oct; 26, 1943 AUTOMATICrmconp CHANGING APPARATUS Arthur L. Knox and Fritz Kahl, Fort -Wayne,lnd.,

assignors to Farnsworth Television and Radio Corporation, a corporationofDelaware Application D'ecember 31, 1940, Serial No. 372,681

7 Claims.

This invention relates to automatic recordchanging apparatus, and moreparticularly to' new and useful improvements embodied in such apparatus.

An object of the present invention is to provide an improved andsimplified mechanism for controlling the movement of a magazin in anautomatic record-changing apparatus.

A further object of the present invention is to provide an improvedmounting for a pickup arm used with record-changing apparatus.

A further object of the present invention is to provide an improvedmechanism for controlling the movement of the pickup arm used withrecord-changing apparatus.

In accordance with the present invention, there I is provided anautomatic record-changing apparatus comprising a magazine, a cam wheel,and a connecting member associated with the magazine and having firstand second elements. The first and second elements are adapted toccopcrate with the cam wheel at difierent'times to move the magazineover diiierent distances. The record-changing apparatus also includes arotating member with a reciprocating member associated therewith. Thereciprocating member is adapted to be positioned during the precedingcycle of the said cam wheel for moving, during the beginning of thefollowing cycle of th cam wheel, the first element out of cooperativerelationship with the cam wheel, and the second element into cooperativerelationship with the cam wheel for moving the magazine over a differentdistance.

In accordance with a further feature of this.

invention, there is provided a phonograph including a turntable. apickup arm, and a supporting means for said pickup arm, The supportingmeans for the pickup arm comprise a shaft with a first bearing elementand an elevating means associated with the shaft. A member with a sec--ond bearing element is adapted to pivot on the first bearing element ofthe shaft. The second bearing element is adapted to pivotally supportthe pickup arm when a stylus of the pickup arm is in engagement with arecord on the turntable. A pivot transfer means is associated with themember and is adapted to engage the pickup arm when the elevating meansmoves a stylus of the pickup arm out of engagement with a record on theturntable. Upon the engagement of the pivot transfer with the pickuparm, the pivotal movement of the pickup arm is transferred from thesecond bearing element to the first bearing'element.

In accordance with a further feature oi the present invention, there isprovided an automatic record-changing apparatus comprising a turntable,a pickup arm for cooperating with a record on the turntable and a cammeans for moving the pickup arm. A swinging means, which is associatedwith the pickup arm and the cam means, imparts to the Pickup arm arelatively fast outward movement and a relatively slow inward movement.I

In accordance with a further feature of the present invention, there isprovided an automatic record-changing apparatus comprising a turntable,a pickup arm for cooperating with a record on the turntable, and a cammeans for moving the pickup arm. A first means is associated with thecam means and the pickup arm for imparting a raising and loweringmovement to the pickup arm. A second means is associated with the cammeans and the pickup arm for imparting to the pickup arm an outward andan inward movement. A spring means is associated with the second meansfor moving a stylus of the pickup arm into the outer groove of a recordon the turntable after the stylus oi th pickup arm is brought intoengagement with a record on the turntable.

For a better understanding of the invention,

taken in connection with the accompanying draw lugs, and its steps willbe pointed out in the appended claims.

In the accompanying drawings:

Fig. l is a top plan view of the record-changing apparatus;

Fig. 2 is a side elevatlonal" view showing a partial assembly of therecord-changing apparatus;

Fig. 3 is a front elevational view of the upper portion of therecord-changing apparatus;

Fig. 4 is a front elevational view of the lower portion of therecord-changing apparatus;

Fig. 5 is a perspective view of the upper portion of the record-changingapparatus shown in the act of reversing a record;

Fig. -6 is a detailed sectional view taken on line 6-6 of Fig.1;

Fig. 7 is a vertical sectional view through the record magazine showingthe location of the records therein;

Fig. 8 is a fragmentary view showing the look-- ing mechanism for therecord-reversing member and the mechanism for placing therecord-releasing device out of operative position;

Fig. 9 is a view showing the side of the cam wheel with the continuouscam grooves which control the pivotal movement of the magazine;

Fig. 10 is a sectional view of the cam wheel and its associated partswhich cooperate in pivotally moving the magazine;

Fig. 11 is a view looking in the direction of the arrows of line I l-l Iof Fig. 4, showing the mechanism for moving the pickup arm in ahorizontal plane and a vertical plane;

Fig. 12 is a fragmentary view showing the associated elements for movingthe pickup arm horizontally;

Fig. 13 is a fragmentary view showing the mechanism for positioning ofthe pickup arm at the outer groove of twelve-inch records,

Fig. 14 is a view of the cam wheel showing the cam surface for movingthe pickup arm horizontally;

Fig. 15 is a sectional view showing the double pivotal support for thepickup arm;

Fig. 16 is a fragmentary view showing the mechanism for setting therecord-changing apparatus to play one or both sides of a record;

Fig. 1'7 is a fragmentary view showing the trip. ping mechanism;

Fig, 18 is a partial sectional view taken on line l3-'-l3 of Fig. 17,showing the clutch assembly of the tripping mechanism;

' Fig. 19 is a sectional view taken on line I3-I3 of Fig. 17, showingthe mechanism for actuating the switch control member of the trippingmechanism;

Fig. 20 is a fragmentary elevational view showing part of the mechanismfor controlling the main driving motor switch;

Fig. 21 is a fragmentary elevational view showing another portion of themechanism for controlling the main driving motor switch; and

Fig. 22 is a fragmentary elevational view showing a cam in the magazinecontrolling mechanism.

Referring particularly to Fig. 1 of the drawings, the invention isillustrated ashaving a base or supporting plate 23. Disposed above thebase plate is a horizontally rotatable turntable 2i supported by acentering pin 22 journaled for rotation in a bearing set in the baseplate 23.

As shown in Fig. 4, the turntable 2| is driven by a friction wheel 23shown to engage the rim of the turntable 2|. The friction wheel 23 isoperatively connected by means of a shaft 24 to an electric motor 23supported from brackets fixed below the base plate 23. Current issupplied to the motor 23 from a suitable sourc through conductors 23.

A reproducer 21 (Fig. 1) cooperates with th records supplied to theturntable 2|. The reproducer 21 is supported at the end of a pickup arm23, the other end of which is pivoted on a pedestal 23. The pickup armis so mountedas to permit the reproducer 21 to move in a horizontal andvertical plane. Means are provided, after the stylus of the pickup arm23 reaches the inner groove .of the record for elevating the pickup armand swinging the pickup arm horizontally to position the stylus of thepickup arm for engagement with the outer groove of a record on theturntable. This means will be described in detail hereafter.

Means are provided for supporting a plurality of intermixed records ofdiiferent sizes. This means includes a bracket 33 (Figs. 1 and fixedlysecured to the base plate 23. The bracket 33 has a pair of upwardlycurved spaced'arms 3| connected and braced by a web 32. The enlarged inFigs. 6 and 7 of the drawings.

ends of the arms 3| provide bearings 33 (Figs. 1 and 3) for short shaftsor studs 34 of a record magazine or reservoir 33 (Figs. 2 and 3). Thereservoir or magazine 33 is mounted in the bearings 33 for a swingingmovement between the solid line position and the dotted line positionshown in Fig. 2 of the drawings.

The magazine 33 includes a forwardly projecting flange 33 (Figs. 2 and3), a back portion 31 and a lower cross-member 33 connecting the lowerends of the side portions of the fiange 33. A sectional view of thecross-member 33 is shown It is apparent from these figures that thismember is angular in shape having a substantially horizontal por- Formedon or secured to the back 31 of the.

magazin 33 are pairs of ribs 43 and 43 (Fig. 3). The rear record of thestack of records 43 will have its upper peripheral portion inengagement.

with the ribs 43 (Fig. 7) when the records are stored. The .ribs 43function in transferring a record from the magazine 33 to the turntable2! as will be described hereafter.

Means are provided for transferring the sup ported records one at a timefrom the magazine 33 to the turntable 2| The first step in-thisoperation is to separate a. record from the stack of records 43 (Fig.7). This requires the cooperation of an electric driving motor 47 and agear box or speed reducer 43 which are disposed on the underside of thebase plate 23 as shown in Fig. 4 of the drawings. This driving mechanismis arranged to rotate a shaft 43.

Secured to the shaft 43 is a large cam wheel 33 having in its sides camtracks orgrooves to be described later, and having on its periphery acam 3| shown in Fig. 2, for operating a mechanism to chop or remove arecord from the magazine 33. A lever 32 is pivoted intermediate its endson a shaft 33 which is carried by a bracket 34 depending from theunderside of the base plate 23, Fig. 2. At one end, the lever 32 carriesa roller 33 which is adapted to engage the cam II on the periphery ofthe cam wheel 33, when it is desired to feed a recordvfrom the magazine33 to the turntable 2 l.

The opposite end of the lever 32 is pivotally connected to an upwardlyextended rod 33 (Fig. 2) passing through the base plate 23 and a guide37 secured to the upper side of the base plate 23. At its opposite endthe rod 33 is bent forwardly and its forward portion 33 passes throughan elongated opening 33 in a knife or chopping lever 33 shown in Fig. 3.This lever 33 is pivoted intermediate its ends at 3|, to the member 33of the magazine 33.

The opposite end of the lever 33 (Fig. 3) extends between the supportingpins 4| and 42, and

record in the magazine 38 which rests against the ribs 45 also rests onthe portion 82 of the lever 68, and against the vertical leg 88 or thecross-member 38.

When the cam wheel 88 is rotated so that the cam l- (Fig. 2) strikes theroller 85, the lever 62 is rocked on its pivot 53 drawing downwardly therod 56. This in turn rocks the end 62 of the lever 68 upwardly. Thismovement of the lever 68 elevates the record resting on it and therecord slides downwardly out of the magazine and lands with its loweredge resting on spaced cushioning pads or blocks 63 disposed on the baseplate 28 shown in Figs. 1 and 6. The partially removed record is heldagainst rearward movement at its lower edg by a pad 64 on an upright 65.

The next step is to move the record from the cushioning pads or blocks63 to the turntable 2|. This is accomplished by the cooperative movementof the magazine 35 and a pan 88. The movement of the pan 66 is achievedin th 7 following manner.

The cam wheel 58 (Fig. 2) is provided'with a cam groove 61 in which isdisposed a guiding pin 68 which is carried by an arm 68 slotted at itslower end as at 18. The shaft 88 passes through the slotted portion ofthe arm 68 to serve as a bearing for the arm. At the upper end of thearm 69 there is pivotally connected a lever plate 28 and is adapted tobe swung by the segmental gear 12 through an are from the full lineposition of Fig. 2 to the dotted'line position, and thus to a positionsurrounding and below the turntable 2|. When a record has been releasedfrom the magazine onto the cushioning pads 63,

the rearwardly extending tongue 18 of the pan 86 i disposed below thesepads 63. As the pan 66 is swung downwardly on its pivots 18 toward thedotted line position by the segmental gear 12 which is driven in amanner previously described, thetongue projection 68 swings upwardlybetween the pads 63, and engages the lower edge of the released recordand elevates it.

As the pan 66 moves downwardly in' cooperating to move the releasedrecord to the turntable,

the magazine 35 is swung in the bearings 33 through an are from the fullline position shown magazine 35 for cooperating in moving a new recordto the turntable. The beam 88, by means of an elongated opening 8| atone end thereof, is slidably mounted on the shaft 88. At the other end,the beam 88 is pivotally connected as at 82 (Fig. 2) to an arm ofabell-crank lever 83 This pin i slidably' pivoted as at 84 on a bracket85 depending from the underside of the base plate 28. The opposite endof the bell-crank lever 83 is connected as at 86 to a link 81 which isconnected at its upper end as at 88 to a bracket 88 fixedly secured tothe magazine 38 (Figs. 1 and 2). Referring to Figs. 1 and 2, it will beapparent that the bracket 88 is disposed on the magazine 35 rearwardlyof the pivot studs 34, and that when the beam 88 is moved upwardly byengagement of the pin 18 in the cam groove 11, the bell-crank lever 83will be rocked in a clockwise direction against the biasing with the aidof the tension or a spring 88. The spring 88 is aflixed to the baseplate 28 and an extension of the lever 83 (Fig. 2) in such a mannerthat, when the magazine 35 is in the full-line position shown in F18. 2,the spring 88 is under tension. As the bell-crank lever rocks it willoperate through the link 81 and pivot the magazine 38 from the full-lineposition to the dotted-line position of Fig. 2.

This movement of the magazine 38 occurs .shortly after the tongue ll ofthe pan 66 (Fig. 2)

has engaged and moved the new record from the pads 63.- The rear portion31 of the magazine 38 flares outwardly a at 8| (Figs. 2 and 7). Theupper portion of the released record is, of course, in contact with theback 31 of the magazine before it is moved to the turntable.

As the pan 66 is pivoted downwardly in the manner previously described,the record slides forwardly on the pan 86. The movement of the magazine35 assists the forward movement of the record, one edge of which iselevated and resting against said magazine and the other edge of whichextends through the pan 66, eng ing and sliding across the surface ofthe turntable. During the record-changing process the turntable rotatesbut the record is held from lateral movement by the inner edge of thepan 68.

If a ten-inch record is being placed on the turntable, its forward edgewill engage a vertical wall 92 of the pan 66 (Figs. 1 and 2), and itsforward movement will be stopped. Now, as the cam wheel 58 continues torotate with the shaft 88, having completed one-half of a revolution, thepin 18, in following the cam track 11, will cause the beam 88 (Fig. 2)to move downwardly, and in moving cause the bell-crank lever 83 to movein a counter-clockwise direction, being assisted by the tension spring88. As the bell-crank lever 83 moves in a counterclockwise direction,the link 81 moves the magazine 38 back to its full-line position, shownin Fig. 2. As the magazine 38 swings back to the latter position, therear edge of the record is gradually lowered into a properly centeredposition on the turntable 2|.

It is to be noted that the edge of the record first comes intoengagement with the turntable on the opposite side of the centering pin22 so that the record i not hindered in its sliding movement. Further,the turntable is covered portion 83 having a center opening defined by,the line 84. The central opening is of slightly greater diameter thanthe diameter of the turntable 2|. This i apparent by referring toFig. 1. The turntable is of less diameter than the smallest record to beplayed. The are defined by the wall 82 has a radius equal to the radiusof a teninch record.

When a twelve-inch record is released from the magazine 35, and is movedinto playing position upon the turntable, in the same-manner aspreviously described for a ten-inch record, it jumps over the wall 92,owing to its greater diameter, and its forward edge contacts a wall 95of the pan 66 (Figs. 1 and 2). The inner circumference of the wall 95has a radius equal to the radius of a twelve-inch record. This wall 95limits the forward movement of a twelve-inch record, and as the magazineis swung back to the full-line position of Fig. 2, in the same manner aspreviously described, the twelve-inch record is let down and properlycentered on the turntable 2I.

The magazine 35 cooperates in reversing a record on the turntable bybeing moved to rotate on the bearings 34. This movement of the magazine35 is different from the movement of the magazine 35 when it cooperatesto move a new record to the turntable. This difierence is achieved byhaving a pin 96 of the beam 80 cooperate with a cam groove 91 of the camwheel 50 to guide the beam 80 in moving the magazine 35.

Just before beam 80 completes its movement for pivoting the magazine 35to cooperate in moving a new record to the turntable. the beam 30 bringsa fiat spring 98 mounted thereon, as shown in Fig. 10, into position sothat a springbiased pin 99, which is mounted in a cam I which rotateswith shaft 49, is moved downwardly to the position shown in Fig. 10.

When the shaft 49 and the cam wheel 50 begin to rotate to carry out arecord-reversing operation, the pin I8 of the beam 80 is in engagementwith the cam groove ll of the cam wheel 50 and the pin 99 is in theposition shown in Fig. 10.

As the shaft 49 continues to rotate, the cam I00 moves the pin 99 intoengagement with a hooked end IOI of a lever I02 (Figs. and 16) which issupported pivotally to a member I03. The engagement of the pin 99 withthe hooked end IOI of the lever I02 as the cam I00 rotates, causes themember I03 to move to the right (Fig. 10) in a pair of bearings I04.This movement of the member I03 moves a T-shaped lever I05, which isconnected pivotally to a member I03, to withengaged. But since theroller II 6 on the end draw the pin I8 from the cam groove 11 and topivots the magazine 35 to cooperate in reversing a record on theturntable.

While the member I03 is moved downwardly Fig. 16) as just described, theupper end of a finger I06 provided on the member I03 engages and moves alever I01 in a counterclockwise direction (Fig. 16). This movement ofthe lever I01 by means of a connecting lever I08 causes an L-shapedlever I09, which is mounted pivotally to the base plate 20, to rotate ina counterclockwise direction. This movement of the lever I09 causes anend IIO to move out of engagement with a finger III provided on asegmental gear II2 which is mounted pivotally to the base plate 20. Alink H3 is connected to the segmental gear I I2 and an L-shaped leverII4 as shown in Fig. 8. Lever II 4 is connected pivotally to the baseplate 20 at H5 and its supports at its other end, a roller II6. A springII'I having one end anchored to the base plate 20 and the other endanchored to the link II3 moves the segmental gear II2 and the lever H4in a clockwise direction when finger'III and lever I09 are disof leverH4 is in engagement with a cam surface H8 on the cam wheel 50, tinsclockwise movement of the lever H4 and segmental gear H2 is limited bythe shape of the cam surface H8.

The clockwise movement of the segmental gear I I2 as just describedserves two purposes. It actuates the mechanism for swinging a reversingmember II9 from the position shown in Fig. 3 to the position shown inFig. 5 and it also moves the lever 52 out of operating position with thecam-5| of the cam wheel 50 so that the record-releasing lever 60 willnot be operated during the record-reversing cycle.

The clockwise movement of the segmental gear II2 moves the reversing barH9 in front of the magazine 35 by means of a pinion I20 which is ailixedto a shaft I2I extending through the base plate 20. At the upper end ofthe shaft I2I there is formed a lug I22 (Fig. 3). This lug I22 enters anotch in the lower end of a stud I23 Journaled in a'bearing I24 (Figs. 1and 3). To the upper end of the stud I23 is secured an arm I25 offsetdownwardly as shown in Fig. 3. At its free end the arm I25 carries thereversing member I I9, including a flexible plate portion I26 and aspring frame I2! connected with the flexible ,plate I26 as at I28 andalso by a spring piece I 29. At the lower end, the frame-like member I21is free of the flexible plate I26 and normally set forwardly thereof.When the segmental gear II2, as previously described, rotates the pinionI20 fixed to the shaft I2I, the reversing member II9 will be swung fromthe position shown in Fig. 3 to the position shown in Fig. 5.

The clockwise movement of the segmental gear II2 also moves out ofoperating relationship, a mechanism for moving the record-releasinglever 60. As the segmental gear I I2 rotates in a clockwise directionthe finger III afiixed thereto engages the end of a screw I32 secured tothe end of an arm I33, which is fixed to the lower end of the rod 56(Figs. 2 and 8)- to move therewith. As the arm I33 is moved byengagement of the finger III in a clockwise direction (Fig. 8), the rod56 is rotated in a counterclockwise direction. The counterclockwiserotation of the rod 56 moves laterally in a counterclockwise directionthe lever 52, one end of which is connected to the rod 56 by the pinI34. Intermediate its ends, the lever 52 is formed in such a manner thatit is adapted to be mounted on the shaft 53 to slide thereon laterallyand to pivot thereon in a vertical plane as shown in Fig. 8. A springI35 is fixed to the shaft 53 and is engaged operatively with the lever52. Normally, the spring I35 maintains the lever 52 in a position sothat the roller 55 is maintained in the path of the cam portion SI ofthe cam wheel 50. When the lever I33 is moved in a counterclockwisedirection by the finger III, the lever 52 is moved in a counterclockwisedirection against the tension of the spring I35 to move the roller 55out of 'the path of the cam portion 5| of the cam wheel bearings 04 toassist in centering the record in reverse position upon the turntable.

After the record has been returned to the turntable in reverse position,the reversing member I I9 is swung back to the normal position on theside of the magazine 35. This is accomplished mental gear II2 rotatesthe plnion l20 of the shaft I2I in a clockwise direction to swing thereversing member I I9 outwardly.

The counterclockwise movement of the segmental gear II2 also moves thefinger III out of engagement with the screw I32. This allows the springI35, which-is under compression, to move the lever 52 back into the pathof the cam 5| on the cam wheel 50 so as to operate the record-releasinglever 00. 9

Near the end of the record-reversing cycle, pin 90 is brought out ofengagement with the cam groove 91 and the pin 18 is brought back intoengagement with the cam groove 11. This is accomplished by bringing thecam I into engagement with a roller I80 mounted on the member I03. Thisengagement of the cam I00 with the roller I30 moves the member I03 whichtransmits rocking motion to the T-shaped lever I to withdraw pin 90 fromcam groove 91 andto move the pin 18 into engagement with the cam groove11. The continued movement of the cam I00 after the retraction of pin 90from engagement with the cam groove 91, moves the pin 99 into the pathof a small wedge-shaped projection I81 which is secured to the memberI08. The engagement of the pin 99 with the projection I81 moves thespring-biased pin 99 of the cam member I00 upwardly (Fig. 10) so thatthe positions. of the pins 18 and 80 are not changed during the nextrecord-changing cycle.

When the stylus of the pickup arm 28 reaches the inner groove of arecord, the pickup arm is elevated and then swung outwardly in ahorizontal plane to a position where it will not interfere with arecord-changing cycle.

The means for elevatingthe pickup arm insurface I40 with a notchedportion I4I. A roller I42, which is fixed to one end of a lever I43, isadapted to engage the cam surface I40. The other end of the lever I43 isconnected to a bracket which is suspended from the base plate 20 so thatthe lever I40 may pivot in a vertical cludes a cam wheel In (Figs. 4 and11) fixed to the shaft 49. The cam wheel I39 has a cam plane. Anadjustable screw I44 is supported .by the lever I48 intermediate itsends. The

screw I44 supports a rod I45 which extends upwardly in a hollow shaftI40. The shaft I40 is rotatable within-the pedestal 29 and is adapted tomove vertically therein. The shaft I40 has an irregular-shaped-plate I41fixed to the top thereof. The plate I41 is adapted to move freely overthe top of the pedestal 29. Oneend of the plate I41 is provided with abearing I48 which pivotally supports a plate I 49 by means of a pinshown in Fig. 15 to maintain a predetermined stylus pressure on therecord on the turntable. An adjustable screw I53 is provided on theother end of the plate I49 to come into contact with a surface such asI54 just before the stylus is brought out of engagement with the recordas the pickup arm is being elevated for a recordchanging operation. Whenthe cam wheel I39.

begins to rotate to elevate the pickup arm out of engagement with arecord on the turntable, the roller I42 is in the notch I. The rotationof the cam wheel I89 moves portion I55 of the cam surface I40 under theroller I42. The raising of the roller I42 and therewith the lever I43moves the adjustable screw I44 which raises the rod I45. The raising ofthe rod I45 moves upwardly the plate I48 which is fixed to the plateI41. When the lever I49 is moved by the upward movement of the pin I45,the plate I41 is moved upwardly and therewith the hollow shaft I40. Asthe lever I49 moves upwardly the adjustable screw I53 engages thesurface I54 and the pickup arm is elevated by pivotal movement about theaxis of the pin I48A to lift the stylus out of engagement with therecord.

In order to swing the pickup arm outwardly in a horizontal plane, thecam wheel I39 is provided with a cam surface I50, which is adapted toengage the pin I51. The pin I51 is affixed to one end of a plate I58which is pivoted as at I58A to the base plate 20. The plate I58 isprovided with an aperture I59 through which pins I00 and IOI extend.These pins I00 and IN are affixed near one end of a lever I02, the otherend of which is fixed to the shaft I40 to move therewith. The outwardmovement of the pickup arm begins when cam portion I08 of the camsurface I50 moves into engagement with the pin I51.

This moves the plate I58 in a clockwise direction (Fig. 12) When thestylus of the pickup arm is in the tripping groove of a record on theturntable, the pins I00 and IOI are in the position IO0A and IOIA, asshown in Fig. 12. The clockwise movement of the plate I58 (Fig. 12)engages the left side of the aperture I59 with the pin I00 to move thepin I00 and the lever I02 attached thereto in a counterclockwisedirection (Fig. 12). It is to be noted that any movement of the leverI02 while the pickup arm is out of engagement with a record on theturntable is against friction created by the engagement of the lever I02with the base of the pedestal 20 as at I02A. The frictional en agementbetween the lever I02 and the pedestal 29 occurs when the shaft I40, towhich the lever I02 is affixed. is raised. as has been previouslydescribed. The raising of the shaft I40 brings the upper surface of theannular end of the lever I02 into frictional engagement with the bottomsurface of the pedestal 29. The clockwise movement of the plate I50 isagainst the biasing action of a spring I04 which has one end anchored tothe plate I58 and'the other end anchored to a pin I05 de ending from theunderside of the base plate 20 (Fig. 13). When the pins I00 and IOI havereached the osition shown by IO0B and IOIB and the plate I58 has reachedthe position shown in dotted-lines in Fi ure 12, the pickup arm 28 hasbeen swung to its outwardmost position.

After the record-changing cycle is complete. the cam wheel I89 hastraveled to a position where the cam portion I00 of the cam surface I50moves into engagement with the pin I51. The tension of the spring I04,which is sufficient to overcome the frictional resistance" of the leverll! created by its engagement with the base of the pedestal ll (Fig.13), thereupon starts to swing theplate Ill ina counterclockwise direc-.tion (Fig. 12) causing the righthand side of the aperture III to engagethe pin IOI in the position indicated by IQIB. moving the pin "I andtherewith the arm It! in a clockwise direction (Fig.

12). During this latter movement of the plate movement. This allows forthe more accurate rpositicning of:the pickup arm over the outer grooveof a record on the turntable. The slower inward movement of the pickuparm is achieved by the shape of the cam III which includes the steepportion I" .which acts during the outward movement of the pickup arm andthe gradual portion I" which acts during the inward movement ofthepickup arm. The speed of the inward and outward movement of thepickup arm is also. due to the action of the plate Illon the pins'liland III at diiferent times. When the side oi the aperture m of the plateIll (Fig. 12)

- :actson the pin I 8.. However, when the pickup arm is being swimginwardly. theright side of the aperture I I! of the lever III is actingon the pin "I (Fig. 12). Since pin IBI is further from the axis ofrotation of lever I! than pin I, it

is obvious that pin IGI movesslower than pin Ill around the axis ofrotation of the lever III.

' When the picku arm Ill is in a position approximately over the outerroove of'a record on the turntable, the portion Ill "of the cam surfaceI moves under the roller I". As the cam wheel ltlcontinues to rotate,the notch Ill gradually comes into engagement with the roller II?! whichallows the lever I II and the rod Ill to lower the pickup armandtherewith the stylus into engagement with the outer roove of a recordon the turntable. With the lowerin of the pickup arm, the lever Illisbrou ht out of frictional engagement with the pedestal N.

I Due to the test that the outer grooves of disc records are not atexactly the same distance from their outer ed es, the stylus does notalways drop exactly into the outer groove of a record. Means areprovided for moving the stylus into the outer groove of a record whenthe record is not provided with a feed-in roove. This means includes .atension spring INA which plate III as shown in Fig. 12. When the pickuparm 28 is swung inwardly by the movement ofthe plate I" (Fig. 12) aspre- 'viously described. the

pin It I engages and forces the spring IOOA' outwardly thereby-creatinga tension onthisspring. The tension created is not sumclent tonvercomethe frictional resistance of'the lever I I created by'itsinovementagainst the base of the pedestal 20,. but it is sufficient to'swing-thelever Iii-when it is free of the II.- When the pickup arm 2| is swunginwardly by the plate I I8, and is lowered into en agement withthescribed, and the stylus. has not engaged the outer 'grooveof thereconl,the tension spring "8A, which is exerting a forceupon the pin I Bl (Fig.12),.thereupon moves the lever Ill and there'- the pickup arm llinwardly sufllciently far is p rovided on the bracket I'll dependingfromthe underside of the pickup arm is being swung outwardly, the leftrecord, as heretofore de-- 70 and moves the finger the spring I 14 tomove the stylus of the reproducer into engage ment with the outer grooveof the record. Means are provided for limiting the inward movement ofthe pickup arm I. ,so that the stylus may be positioned over the outermargin of a twelve-inch record. This means includes a lever :Ill whichis pivotally supported by a base plate II, Fig. 13'. Disposedintermediate the ends of the lever I'll is a depending gear I'I2 whichis held out'of the path of movement of a lug-I13 provided on the plateI", by means 0! a fiat spring I14 depending from the base plate I! andengaging the free end of the lever 1'", as shownin Fig. 13. Near itsfree end, the

lever I" is provided with a finger I" which extends upwardly through thebase plate 20 sufficiently far to pass through an elongated aperture Illprovided in the pan 68 (Fig. 1) and extend above the base plate 20 andturntable.

I a suitable distance as indicated in Fig. 18. The location of thefinger I15 in relation to the turntable, is such, as to lie in the pathof a twelve-inch ncord, when said record is moved into playing'positionupon the turntable 2| When a ten-inch record is released from themagazine and is placed upon the turntable, the

Pe iphery of the ten-inch the finger I" to release record will notengage the lever Ill. Thus,

the plate I II will swing into its normal position to move the pickupover the outer groove of a ten-inch record, as previously described.When atwelve-inch record is releasedfrom the magazine SI and is movedinto playing position upon the turntable, the periphery of thetwelve-inch record engages the finger I'Il (Figs. 1 and 13). I15 andtherewith the lever I'll downwardly out of engagement with the springcatch All. The lever In is released by after the plate III has moved thepickup arm II to its outermost position as heretofore described. When.the plate Ill acts to swing the pickup 'arm 28 inwardly as previouslydescribed, the lug I13 engages the ear I12, which was released while thetwelve-inch record was-placed upon the turntable. The engagement of thelug. I" with the ear I12 takes place when the pickup arm 28 has beenmoved inwardly sumciently far to position the. stylus over the outergroove'oi the twelve-inch record. The engagement of the elements I'lland I1; takes place before the fiat portion, III

of the cam surface Ill engages the pin-Ill.

However. continued movement of the cam wheel It! acts to lowerv the.stylus into engagement with the outer groove of the twelve-inchrecord.-

When the twelve-inch record is played and g the tripping mechanismisactuated, in the manner presently to be described, the cam wheel III inrotating to return-the played record to the causes the'jcam II toactuate the magazine 35, lever I! to release a new record from the magszine II.- As the cam wheel It continues to rotate, the cam II engages apivoted lever I" (Fig. 11) and liftsthe lever I" in a vertical plane.This lever is arranged to engage the lower edge of. the lever I101 (Fig.13). Thus, as the lever I" is raised, it engages and lifts the lever IIt to its normal position in engagement wi the spring. I'Il as shown inFig. 13; Whenthe new record, previously released from the magazine, islowered upon the turntable, (if it is a ten-inch'record), the mechanismwill remain in its normal position to play the ten-inch I record.However, if the new record is a twelvetomatically to position the pickuparm over the beginning of the twelve-inch record, as heretoforedescribed.

The automatic record-changing or record-reversing cycle is actuated bythe automatic tripping mechanism, previously mentioned, which will nowbe described in greater detail. The pickup arm 28, which has beenlowered to engage the stylus with the outer groove of a record on theturntable, is moved inwardly by the stylus following the spiral grooveon the record. In moving toward the center of the record, the pickuparmmoves with it'the plate I41.

Referring particularly to Fig. 1'7, the plate I41 is shown to have twofingers I18 and I18. As

reproduction goes on and the pickup arm 28 moves toward the center ofthe record, the pickup arm moves with it the plate I41 in a clockwisedirection (Fig. 17). As the pickup arm approaches the end ofthe record,the finger I18 engages a turned-up end I80 of the lever III (Figs. 17and 18) and moves the lever in a counterclockwise direction. This leverI8l by means of frictional engagement moves a lever I82 which supportsat its free end .a pivotal spring-biased lever I82A (Figs..17 and 18).

The frictional connection between the levers [8| and I82 comprises aclutchmechanism which is constructed by placing the annular end portionof the lever i 82 over a metallic washer I88 (Fig. 18). A frictionwasherI84 is placed over the annular endportion of the lever I82. The annularend portion of the lever I82 is adapted to rotate on the axis of a screwI85. 'I'he annular end portion of the lever'I8I, which also -is adaptedto rotate on the axis of the screw I85, is placed over the fiberwasherI84. A spring washer I88 is placed over the annular end portion of thelever I 8I between the levers I8! and I 82 is adjustable by varying thetension of the spring washer I88 by The frictional connection turnin thescrew I85 As the stylus of the pickup arm advances toward the center ofthe record with the ear I18 in engagement with the upturned end I80 oflever I8I,-the lever I8I moves the lever I82 in a counterclockwise,direction. The spring-biased lever I82A fixed to the free end of thelever I82 moves with the lever I 82 to move a fiber roller I81 affixedto one end of the lever I82A into the path of themovement of a lug I88.The lug I88 is fixed to a member I88 which is fixed to the under side ofthe turntable 2I and rotates therewith. Each. time a record on theturntable makes one revolution,'the lug I88 engages the roller I81 tomove the lever I83 and the lever I82 in a re'- versed direction.However, due to, the fact that the lever I8I is in engagement with theear I18 and that there is a frictionalconnection between the levers I8Iand I82, the reverse movement of the lever I82 is not transmitted tothelever I8I.

When the stylus moves into a tripping grooveat the'end of the record,which may be an eccentric groove or a spiral groove, the lever I88ismoved inwardly (Fig. 1"!) fast enough to move a hooked end I80 of thelever I83 into the path of the lug I88. The engagement of thelug I88with the lever l83,causes the lever I83 to moveln a counterclockwisedirection against theblasing action of a .spring I84 (Fig. 17). Afterthe lug I88 moves past the end of the lever I83, the tension springreturns the lever I83 to its normal position, in to engagement with anear I85 provided on the lever I82.

engage and move a spring-biased pin I81 downwardly. As the pin I81 movesdownwardly, it

engages and moves a spring-biased member I88 in a clockwise directionabout its axis on a lever I88 which is fixedly secured to the shaft 48(Figs. 4 and 21). As shown in Fig. 20, the upper end of the member I88engages an ear 200 provided on a lever 20I which supports amercuryswitch 202. The engagement of the elements I88 and 200 maintainsthe lever 20I in the solid line position of Fig. 20, whereas when themember I88 is actuated as previously described, the member I88 movesoutof engagement with car 200 per mitting the lever 20I to drop to thedotted-line position shown in Fig. 20 andsinto engagement with a stop203. With the lever 20I in the dotted-line position of Fig. 20, theelement 202 opcrates to close an electric circuitto the motor 41 forstarting it. Immediately after-the mechanism is tripped, the spring I84moves the lever I83 back to its normalposition, permitting a spring 204(Fig. 19) to return the pin I81 to the position shown in Fig. 19. whenthe pin I 81 is raised, a spring 204A returns the member I88 to itsnormal position shown in Fig. 21.

The tripping mechanism starts the motor 41 which rotates the shaft 48and therewith the cam of operation, thelever I88 which rotates with theshaft 48, moves the member I88 into engagement I with the ear 200 andmoves the lever 20I in'a clockwise direction to the position shown inFig. 20. When this occurs, themercury switch 202 opens the electriccircuit to the motor 41 and stops it.

.In addition to the automatic tripping mechanism, there is also provideda manual, "L-shaped spring-biased tripping lever 205 (Fig. 17). A too208 of the lever 205 extends into a hooked portion 201 provided on thelever I88 (Fig. 17).. The lever205 is normally biased by a spring 208into engagement with a stop 208 providedon the base plate 20; When thelever 205 is in this position,

the toe 208 is held out of engagement with the hooked portion 201 of thelever I88. The lever 208 is adapted to be manually moved in a clockwisedirection about its axis 2I0 to engage the toe 208 with the hooked end201 ofthe lever I88,

thereby moving the-lever I88 tomove the pin I81 downwardly. The downwardmovement of the pin I 81 by means of the member I88 closes the mercuryswitch 202 and starts the motor 41 for carrying out a record-changingcycle.

be set manually to play only one side of a record before returning therecord to the magazine. To accomplish this, there is provided anL-shaped lever 2I2 (Figs. 1 and 3). of the lever,2I2 is biased by aspring 2 (Fig. 3) into'engagement with either one of a pair of notches,2i! and 2I8,'provided in the base plate 20. A properly labeledescutcheon 2" as shown in Fig. 1 shows the operator when the lever 2I2is set so that the mechanism will play one side ofa record beforereturning it to the magazine and when the mechanism will play both sidesof As an additional feature, the mechanism may v An upturned end 2I8videdon the lever I02, as shown in Fig. 16. With the levers 2 I2 and 2"in this position, the mechanism will operate to play both sides of arecord, before returning the record to the magazine 80 as heretoforedescribed.

When the upturned end 2I8 of the lever 2I2 is manually moved intoengagement with the notch 2 I8 (Fig.1), the lever 2 I8 is moved to thedottedline position shown in Fig. 16. With the lever 2I8 in this latterposition, the lower end of the lever 2I8 in this latter position; thelower end of the lever 2I8 is in the path of movement of the ear 2|! ofthe lever I02. When the mechanism is tripped and the beam 80 and themember I08 is moved downwardly (Fig. 16) in the manner previouslydescribed, the angularly formed ear MS of the lever I02 moves intoengagement with the lever 2 I8. As the bar I08 and therewith the leverI02 continues to move downwardly, the lever 2I8 in moving over theangularly formed ear 2I8 causes the lever I02 to pivot about axis 220(Fig. 16) .in a counterclockwise direction against the biasing action ofa spring 22I.

As the lever I02 pivots about the axis 220 as previously described, thehooked end IOI of the lever I02 is moved out of the path of movement ofthe spring-biased pin 88 of the cam member I80. As the cam I with thepin 88 moves about the shaft 48, the pin 88 does not engage the hookedend "I of-the lever I02, and as a result, the bar I08 will'not be movedto retract the pin I8 from the cam track 11 and to move the pin 88 in thcam track 01. With the pin I8 following the groove 1'! of the camwheel", the apparatus will operate to return a record to the magazine 88after one side has been played, and

. to place a new record in playing position upon the turntable 2| in themanner previously described. Immediately thereafter, the cam wheel 80,by meansof the pin 18, moves the beam 80 and therewith the lever I02 tothe position shown in Fig. 16. The lever I02 is brought back to thisposition to rest against an ear 222 by means of the spring 22I.

The general mode of operation of therecordchanging apparatus will nowbe: described. After a stack of records has been placed in the magazine88 and the lever 2I8 is in the notch 2I8, a

master switch is closed to start both of the motors 28 and 41. The motor25 starts to rotate the turntable 2| and the motor 41' drives the shaft48 to which is ailixed the cam wheel 80.

The cam wheel 80 in rotating causes the cam 8| to engage the roller 08,-moving the lever 82 about its axis 88 moving the rod 80 downwardly,thereupon moving the lever 80 about its axis 8| sufficiently far to liftthe rear record and release it from the magazine 35. In this mode ofoperation it is assumed that the released record is a ten-inch record.The record then drops so that the lower edge rests on the cushioned padsAs the cam wheel 50 rotates, the beam 88 is moved upwardly by the pin68, which follows the cam track 81 (Fig, 2). This upward movement of thebeam 68 transmits rotary motion to the shaft 88 and the segmental gearI2 ailixed thereto. The rotary movement of the segmental gear I2, whichis in engagement with the gear portion I8 provided on the pan 88 causesthe pan 88 to swing downwardly. The pan 88 in moving downwardly, camesthe extension 14 to move upwardly between the pads 88 to en a e and liftthe released record oiI of the pads 88.

Continued movement of the cam wheel 80 causes the beam to move upwardly(Fig. 2) as the pin I8 (Fig. 10) follows the cam track 11 (Figs. 9 and10). This upward movement of the beam 80 causes the lever 83 to rotatein a clockwise direction (Fi 2) moving the link 81 downwardly andswinging the magazine in a clockwise direction. When the magazine ismoved thus, it cooperates with the 'pan 68 to slide the released recordalong the turntable. Continued movement of the cam wheel 80 moves thebeam 80 downwardly, returning the magazine 38 to the position shown byfull lines in Figure 2. The return movement of the magazine 85 permitsthe released record to drop into playing position upon the turntable.

The cam wheel I88 which'rotates with the shaft 48 has by this timerotated sufficiently far so that the spring I84 which is under tensionmoves the plate I58 and the arm I82 which in turn move the pickup arm 28inwardly to position the stylus over the outermost groove of the recordon the turntable. Immediately thereafter, the roller I42 descends intothe notch I of the cam wheel I88, allowing the rod I48 to descend andtherewith the pickup arm 28 so that the stylus engages the outermostgroove of the record on the turntable. 'The driving motor 41 is shut oilautomatically immediately thereafter. v

When the stylus of the pickup arm 28 reaches the inner groove of therecord on the turntable, the tripping mechanism, including the plate I",

v the levers I8I, I82, I82A and I88 and the ear I88 (Figs. 16, 17 and18) is actuated, whereby the lever I8! is moved out of engagement withthe lever 20I, to close the mercury switch for starting the motor 41which drives the shaft 48.

,in turn raises the pickup arm 28 and the stylus thereon out ofengagement with the record. Continued movement of the cam wheel I88causes the cam surface I88 to movein a counterclockwise direction (Fig.12) the pin Ill and the plate I08. The left wall of th aperture I88 ofplate I00 engages and moves the pin I00 and the lever I82 to swing thepickup arm outwardly from above the turntable. 7

While the pickup arm is being'swung to its outwardmost position, the endIIO of the L- shaped lever I08 is moved out of engagement with thefinger III by means of members I02, I08, I01 and I08 as explainedhereinbefore.

Shortly thereafter the roller Iii which is in engagement with the camsurface II8 on the revolving cam wheel 50 moves to the right looking atFigure 8; This allows the lever H4 and the segmental gear I I2 to rotateclockwise directions. In rotating in a clockwise direction the fingerIII afllxed to the segmental gear II2 moves the lever I88 in acounterclockwise direction. This movement of the lever I88 moves thelever 52 and therewith the roller 55 out of the path of thecam ii on thecam wheel 80. In rotating in a clockwise direction the gear I I2 alsodrives the pinion I20 and therewith the shaft I2I to swing the reversingmember II8 from one side of the magazine 85 as shown in Figure 3 to aposition in front of the magazine 85 as shown in Figure 5.

Immediately after the tripping mechanism was actuated to start therotation of the shaft 48 the pin 88 of the cam I00, which is fixed tothe shaft- 48, engages and moves to the right (Fig. 16) the lever I02and therewith the member I03. This movement of the member I03 rocks theT-shaped lever I05 to retract pin 18 from engagement with the cam groovell of cam wheel 50 and to move the pin 96 into engagement with the camgroove 91 of cam wheel 50. As the cam wheel 50 continues to rotate, thebeam 69 moves upwardly (Fig. 2) swinging the pan 66 upwardly to move therecord from the turntable to a position against the reversing member H9.Thereafter, as the beam 69 moves downwardly the pan 86 moves to aposition below and parallel with the turntable. As the pan 66 is movingdownwardly toward the turntable, the

." beam 80, whose path is now controlled by the pin 96 which isfollowing the cam groove 91 oi the cam wheel 50, is moved to swing'themagazine 35 in a counterclockwise direction (Fig. 2). This movement ofthe magazine -35 allows it to cooperate with the pan 66 and thereversing member H9 in returning the record to the turntable in reversedposition.

After the magazine 35 returns to its normal position as shown by fulllines in Figure 2, the cam member I engages the roller I36, which isfixed to the member I03, for moving the bar I03 to the left (Fig. 10).member I03 rocks the T-shaped lever I so that the pin 96 is moved out ofengagement with the cam groove 91 and the pin 18 is moved intoengagement with the cam groove 11.

By this time the cam wheel 50 has rotated This movement of the p zine asshown in Figure 3. The same counter-- clockwise movement of thesegmental gear II2 also moves the finger III away from the end of thearm I33. This permits the spring I to 1 move the lever 52 and the roller55 intothe path of the cam 5I of cam wheel 50.

Shortly thereafter the cam portion I66 of the cam surface I56 moves intoengagement of the AS the.

has by this time moved to a position to where the member I98 engages theear 200 of the lever 20I. Continued movement of the lever I99 swings thelever 20I in a clockwise direction (Fig. 20) returning the mercuryswitch 202 to the position shown in Fig. 20. When the mercury switch isin the latter position the circuit to the motor 41 is opened and motorstops.

While there has been described what is at present considered thepreferred embodiment of the invention, it will be obvious to thoseskilled in the art that various changes and modifications may be madetherein without departing from the invention, and it is, therefore,aimed in the appended claims to cover all such changes and modificationsas fall within the true spirit and scope of the invention.

What is claimed is: 1. In an automatic record-changing apparatus,

the combination comprising a magazine. adapted to move said magazinesaid different distances;

an actuating member movably connected to said driving means for movingsaid mechanism, whereby said first element is moved into cooperativerelationship with said driving means and said second element is movedout of cooperative relationship with said driving means; and a mov--able member operatively associated with said actuating member andadapted to be moved into an operative position by said connecting meansfor moving said mechanism, whereby said second element is moved intocooperative relationship with said driving means and said flrstelementis moved out of cooperative relationship with said driving means.

2. In an automatic record-changing apparatus, the combination comprisinga magazine adapted to be moved over two different distances; driving pinI51. This allows the plate I58, to which'the pin I5! is fixed, to rotatein a counterclockwise direction (Fig. 12) about the axis I58A.Thiscounterclockwise movement of the plate I58 causes the right-handside of the aperture I59 to engage and move the pin I6I and the arm I62in a clockwise direction (Fig. 12) about the shaft 46 to swing thepickup arm 28 inwardly. When the pin I5I engages the portion I68 of thecam surface I60 (Fig. 14), the stylus of the pickup arm 28 isapproximately over the outer groove of the record on the turntable.Continued movement of the cam wheel I39 lowers the lever I43, the pin Iand the pickup arm 28 and brings the stylus into engagement with theouter groove of the record.

While the pickup arm is being swung from its outwardmost position to aposition over the outer groove of the record on the turntable, the camwheel continues to rotate to move the beam 80. This movement of the beam80 causes the means for moving said magazine; connecting meansassociated with said magazine; mechanism movably associated with saidconnecting means and having first and second elements for alternatelycooperating with said driving means to move said magazine said differentdistances; an actuating member movably connected to said driving meansfor moving said mechanism, whereby said first element is moved intocooperative relationship with said driving means and said second elementis moved out of cooperative relationship with said driving means; amovable member operatively associated with said actuating member andadapted to be moved into an operative position by said connecting meansfor moving said mechanism, whereby said second element is moved intocooperative relationship with said driving means and said first elementis moved out of cooperative relationship with said driving means; andmeans for adjusting said mechanism, whereby said movable member isineflective to move said mechamsm.

3. In an automatic phonograph having a turnmeans for carrying out arecord-changing cycle and a record-reversing cycle; a movable magazinefor supporting a plurality of records, said magazine being movable afirst distance during said record-changing cycle and a second distanceduring said record-reversing cycle; connectlng'means associated withsaid magazine;

the combination comprising a driving' mechanism movably associated withsaid connecting means and having first and second adjustable elements,said mechanism being movable in one direction to bring said firstelement into cooperative relationship with'said driving means during arecord-changing cycle for moving said magazine said first distance andmovable in another direction to bring said second element intocooperative relationship with said driving means during arecord-reversing cycle for moving said magazine said second distance; arecord-releasing means movable by said driving means during saidrecord-changing cycle for releasing a record from said magazine; anoscillatory member movable by said driving means for guiding a recordduring said record-changing and record-reversing cycles; arecord-reversing movable member for cooperating with said magazine andsaid oscillatory member for reversing a record on said turntable;control means movable by said driving means during said record-reversingcycle for moving said record-releasing means into an inoperativeposition and said record-reversing member into operative position,movable stop means operatively associated with the said control meansfor preventing movement of said control means during a record-changingcycle, said stop means being movable away from said control means bysaid mechanism and actuating means connected to said driving means formoving said mechanism.

4. In an automatic phonograph having a turntable; the combinationcomprising a driving means including a cam means for carrying out arecord-changing cycle and a record-reversing cycle; a movable magazinefor supporting a plurality of records, said magazine being movable afirst distance during said record-changing cycle and a second distanceduring said record-reversing cycle; connecting means associated withsaid magazine; mechanism movably associated with said connecting meansand having first and second adjustable elements, said mechanism beingmovable to bring said first element into coperative relationship withsaid cam means during a record-changing cycle for moving said magazinesaid first distance and to bring said second element into cooperativerelationship with said cam means during a record-reversing cycle formoving said magazine saidsecond distance; a record-releasing meansmovable by said cam means during said record-changing cycle forreleasing a record from said magazine; an oscillatory member movablebysaid driving means for guiding a record during said record-changing andrecordreversing cycles; a record-reversing member movable during arecord-reversing cycle for cooperating with said magazine and saidoscillatory member for reversing a record on said turntable; controlmeans driven by the cam means and associated with said record-releasingmeans and the record-reversing means: for moving said record-releasingmeans into an inoperative position and the record-reversing means intoan operative position during said record-changing cycle; movable stopmeans operatively associated with the said control means during arecordchanging cycle, said stop means being movable away from saidcontrol means by said mechanism and actuating means connected to saiddriving means for moving said mechanism.

5. In an automatic phonograph having a tumtable; the combinationcomprising a driving means for carrying out a record-changing cycle anda record-reversing cycle; a movable magazine for supporting a pluralityof records, said magazine being movable a first distance during saidrecord changing cycle and a second distance during said record-reversingcycle; connecting means associated with said magazine; mechanism movablyassociated with said connecting means and having first and secondadjustable elements, said mechanism being movable to bring said firstelement into cooperative relationship with said driving means during arecord-changing cycle for moving said magazine said first distance andto bring said second element into cooperative relationship with saiddriving means during a record-reversing cycle for moving said magazinesaid second distance; a record-releasing means movable by said drivingmeans during said record-changing cycle for releasing a record from saidmagazine; an oscillatory member movable by said driving means forguiding a record during said record-changing and record-reversingcycles; a record-reversing means movable by said driving means duringsaid record-reversing cycle for cooperating with said magazine and saidoscillatory member for reversing a record on said turntable; meansmovable by said mechanism for controlling the operation of therecord-reversing means and the record-releasing means; actuating meansmovably connected to said driving means to move said mechanism formoving, during said record-changing cycle, said first element intocooperative relationship with said driving means; and a movable memberon said actuating means and adapted to be moved relative thereto intooperative and inoperative positions, said movable member, When in saidoperative position, being adapted to move said mechanism, during saidrecord-reversing cycle, for moving said second element into cooperativerelationship with said driving means.

6. In an automatic phonograph having a turntable; the combinationcomprising a driving means for carrying out a record-changing cycle anda record-reversin cycle; a movable magazine for supporting a pluralityof records, said magazine being movable a first distance during saidrecord-changing cycle and a second distance during said record-reversingcycle; connecting means associated with said magazine; mechanism movablyassociated with said connecting means and having first and secondadjustable elements, said mechanism being movableto bring said firstelement into cooperative relationship with said driving means during arecord-changing cycle for moving said magazine said first distance andto bring said second element into cooperative relationship with saiddriving means during a recordreversing cycle for moving said magazinesaid second distance; a record-releasing means movable by said drivingmeans during said recordchanging cycle for releasing a record from saidmagazine; an scillatory member movable by said driving means for guidinga record during said record-changing and record-reversing cycles;-arecord-reversing means for cooperating with said magazine and saidoscillatory member during said record-reversing cycle for reversing arecord on said turntable; means associated with said record-reversingmeans and actuated by said mechanism for releasing'said record-reversingleasing means into an inoperativ position during said record-reversingcycle; and actuating means movably connected to said driving means formoving said mechanism.

7. In an automatic phonograph having a turntable; the combinationcomprising a driving means for carrying out a record-changing cycle anda record-reversing cycle; a movable magazine for supporting a pluralityof records, said magazine being movable a first distance during saidrecord-changing cycle and a second distance during said record-reversingcycle; connecting means associated with said magazine; mechanism movablyassociated with said connecting means and having first and secondadjustable elements, said mechanism being movable to bring said firstelement into cooperative relationship with said driving means during arecord-changing cycle for moving said magazine said first distance andto bring said second element into cooperative relationship with saiddriving means during a record-reversing cycle for moving said magazinesaid second distance; a record-releasing member movable by said drivingmeans during said record-changing cycle for releasing a record from saidmagazine and movable under the control of said mechanism during saidrecord-reversing cycle into an inoperative position; an oscillatorymember movable by said driving means for guiding a record during saidrecord-changing and record-reversing cycles: a record-reversing membermovable by said mechanism during said record-reversing cycle forcooperating with said magazine and said oscillatory member for reversinga record on said turntable; actuating means movably connected to saiddriving means to move said mechanism for moving, during saidrecord-changing cycle, said first element into cooperative relationshipwith said driving means; a movable member on said actuating member andadapted to be moved relative thereto into operative and inoperativepositions, said movable member, when in said operative position, beingadapted to move said mechanism, during said record-reversing cycle,formoving said second element into cooperative relationship with saiddriving means; means on said connecting means for moving said movablemember into said operative position for operating during saidrecordreversing cycle; and means on said mechanism for moving saidmovable member into said inoperative position for being inefiectiveduring said record-changing cycle.

FRITZ KAHL.

ARTHUR L. KNOX.

CERTIFICATE OF conrmcnon. Patent No. 2, 2,650. October 26, 191,

ARTHUR L. KNOX, ET AL.

It is hereby certified that error appears in the printed. specificationof the above numbered patent requiring correction as follows: Page 5,sec-- 0nd column, lines 9 and 10-, strike out the words "against thebiasing page 14., first column, line 146, for lever 105" read --member105; page 1;, second column, line M for engagement read --the movement";and that the said Letters Patent should be read with this correctiontherein that the same mw conform to the record of the case in the PatentOffice.

Signed and sealed this let day of February, A.. D. 191m.

Henry Van Arsdale, (Seal) Acting Commissioner of Patents.

